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How to update VXDIAG VCX NANO firmware

This write-up will step by step explain how to update Allscanner VXDIAG VCX NANO firmware, including


VXDIAG VCX Nano GM firmware download:


VXDIAG VCX Nano GM firmware download:


Both are old firmware versions for VXDIAG VCX Nano for GM.


For 2017 VXDIAG VCX NANO firmware download, please go to



  1. Make a backup of your ManagerCenterC.ini file (where your prog is installed).
  2. Change one line in your original ini file to
  3. Connect VXDIAG VCX Nano to PC

The PC must be connected online


  1. Start [VX Manager]


  1. Click on [Device Manager]


  1. Click on [Information]


  1. Click on [Firmware]


  1. Click on [Upgrade] to Upgrade Firmware


During VXDIAG VCX Nano firmware update, DO NOT disconnect VXDIAG to PC


After positive update, make your backuped ini file as valid and try regular update.


Note: this how-to’s also works for VXDIAG multi diagnostic tool, such as VXDIAG A3.


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